Linux, FreeBSD, Juniper, Cisco / Network security articles and troubleshooting guides

FAQ

It is currently Thu Dec 07, 2023 9:22 am

ROOT ‹ FreeBSD, Linux and AIX ‹ TCP/IP Networking ‹ icmp port unreachable error message

Internet Protocol, Transport Control Protocol, Network protocols, Routing, Routers, IP aliases, Routes, Ethernet

Post a reply

1 post • Page 1 of 1

icmp port unreachable error message

« Previous topic | Next topic »

Author

Message

gajjj

Post subject: icmp port unreachable error message | Posted: Mon Jul 08, 2013 5:43 am

Joined: Mon Jul 08, 2013 5:39 am
Posts: 4

icmp port unreachable error message

Hello,

I am sending UDP packets from one PC to another. I am watching the the whole activity using Wire Shark. I notice that for some time there is smooth transmission of packets from one system to the other. Then suddenly ICMP packets with error 'port unreachable' starts to appear. Then they disappear for some time and there is again smooth transmission of UDP packets. Then these ICMP packets again appear with the same 'port unreachable' error. Then these ICMP packets disappear again and so on. And this continues in a periodic manner.

Please see the wire shark pic as below:
http://i.stack.imgur.com/w2oy5.png

Can anybody please shed some light that what could be the reason for it. and how to avoid it.

			Tweet
Follow @IvordeCom

You might also be interested in:
icmp port unreachable error message. Fatal error: Trying to set unexisting parameter 'gmysql-host' - PowerDNS error on Debian. ERROR: trying to remove VLAN -:791:- error: Invalid argument. FreeBSD PF supported icmp types. How to block ping icmp echo requests without a firewall in Linux.

Top

Post a reply

1 post • Page 1 of 1

Topics		Author	Replies	Views	Last post
Topics related to - "icmp port unreachable error message"
	icmp port unreachable error message	gajjj	4	4186	Mon Jul 15, 2013 11:10 am gajjj
	Fatal error: Trying to set unexisting parameter 'gmysql-host' - PowerDNS error on Debian	mandrei99	0	7132	Tue Jan 13, 2015 12:03 pm mandrei99
	ERROR: trying to remove VLAN -:791:- error: Invalid argument	admin	0	3511	Tue May 12, 2015 6:07 am admin
	FreeBSD PF supported icmp types	admin	0	3221	Fri Jan 28, 2011 9:15 am admin
	How to block ping icmp echo requests without a firewall in Linux	debuser	0	2779	Mon Nov 26, 2012 9:46 am debuser

Who is online

Users browsing this forum: No registered users and 1 guest

You can post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:

Channel list

ROOT ‹ FreeBSD, Linux and AIX ‹ TCP/IP Networking

Delete all board cookies | The team | All times are UTC - 5 hours [ DST ]